Double knothead twiner



June 10, 1952 H. P. WILSON DOUBLE KNOTHEAD TWINER Filed NOV. 14. .1949

7 Sheets-Sheet 1 97 67 H6 sa 6o ez 6* T-- E 64 59 l 65 57 l y 5| I sa 44 f 4 p; n I "L I o 11| I I V 42 49 46 s4 s2 ,I 55 l 56 l /48 48 55 56 /Ze y@ 3o 3| INVENTOR.

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HmAM PRICE WILSON A TTORNL'YS June 1o, 195'2 H, P, WlLSON 2,599,597

DOUBLE KNOTHEAD rllWINER Filed Nov. 14. 1949 7 Sheets-Sheet 2 INVENTOR. ffm.. HlRAM PmcaWnLsoN ATTORNEYS DOUBLE KNOTHEAD TWINER Filed Nov. 14. 1949 7 sheets-sheet s INVENTOR. HIRAM PRscLWlLsoN f.

AT T0 R11/EVS June 10, 1952 H. P. wlLsoN 2,599,597

DOUBLE KNOTHEAD TWINER Filed Nov. 14. 1949 7 Sheets-Sheet 4 77 v76 l H'RAM PRICEWlLsoN aW/{Mww June 10, 1952 H. P. wlLsoN 2,599,597

l DOUBLE KNOTHEAD TWINER Filed Nov. v14. .1949 7 Sheets-Sheet L5 Fna. 6. F|c.7.

JNVENTOR.

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`June 10, 1952 VH, P, wlLsON 2,599,597

DOUBLEKNOTHEAD TWINER Filed' NOV. 14. 1949 y 7 Sheets-Sheet 6 INVENTOR. HIRAM Pulce W|Lso- June 10, 1952 H. P. wlLsoN 2,599,597

DOUBLE KNOTHEAD TWINER Filed Nov. 14. 1949 7 Sheets-Sheet '7 817,88 Flc. I6.

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x x x x x x x x x x x l x 1 x x x x n u y A A A V V V X x x x x x x x INVENTOR. vHIRAM PRICE WxLsoN ATTORNEYS Patented June 10, 1952 Hops are perennialplants which Agrow-well in the States of Washington andOregone- Comnlon growing procedures are used by most growers. The hops are "set infhillsforming` longrowsat right angles to each other,` and the plantsiare seven feetapart. Ther-rows are-eheclgg planted to allow them tofbeplowed inttwo-directions. Overhead wires run-1 l parallel to l the rows Y and twines are suspended fromthese-wires -`to-vsupport the plants. p p i There are two-types ofoverheadwirey.thelight wires to which thetwines-'areattachedyand the heavy cross wires which"supportthelighter ones. The heavy wires :run in one direction along `the held, directly above thehop-plants,A parallel-toeaeh other at `28 foot-intervals,` and-are-'supported by poleswhich extendgl` feetabove ground. TheseV heavy cross wires support the light wires which extend at Lright angles tosthe heavy wires, and are spaced sevenqfeet lapart, one light wire passing midwaybetweenfeach two rows of hops;- The-general-arrangernent isfshown in Figure 17 inwloiehmthe-Xlsdndicatethe hopplants, the heavy lines theheavy wires, the `light lines the light wiresi-and--the-Ysmall circlesthe poles. While each heavy wire isi-supported bya pole at 28 foot intervals 'theepolesysupporting adjacent wirestarestaggered aswshdwnin the gure, so as toleave'an unobstructedpathway thereto. From theselight wires Ttwinesaresuspended and tied to a stake driven-near each hop plant. 1 To each staketwo ftwines'are tied, oneof which `is attached-tou the-nearestlight -wire on one side, andthe otherlrto the nearestlight wire on the opposite side..` In order for there to` be two twines for eachhop` plant there must therefore be eight twines attached to each of the light wires between each-pair of heavy Wiresl" Due to the breakage `o`fl"-the"`twir`r near" the knot about the Wirevithisthrusal prctico to tie a largeloop at on"e"'end"of "the"`tw'ine with a overhand knot' and `usetli`'ttsofstrands 'of' the" loop to tie a. Clove htch abotth'e Wire?" This; method of looping the twine'allowstlieiliopiand twine to remain'in place" eventhoughfon twine is broken near the knot. Ihdtwine'lslitnaldeof coir and the common-practiceazo'ngfhop'growersj today is to spin` the `coi'1""f1"onr1" tliejskeinsof 'the baled coil and Cut "itinto 18 'or l19 foot` lengths.

and a simple'loop kndt'tidwith'tlie two strands" making a loop Jon the 'end' 'appr'oximatelyfforty inches in circumfere'rioe. Ihe'twine"isfthexrtied' in bundles offabout300L stgsad stdutl used.

. t t t l .5o Then by manual `labor "onee'nd "is' doubled back 'I used the bundles are placed haA troughs" mounted near theplatfom on a sled or wagon. The individual lengths "of twine'are 'thenpicked' up by the workmen" and' tied' about the" wire "in the form` fa clove hitch.l

Thempurp's of ny dblkndt`head`twiir`is to measure and cut a desired length of twine Another @masteredasiibiefkhtlhtaltwmef is to fuseless twine informing the lo'and leave less extending'- beyond the clove knottllan` is necessary when the wol:` is done by "lfiai'id, will result in a saving oftvvne.` y

` An additional object\ ofthe double-knot-hadtwiner` is to lessenjthedan'ger to human lives, since in thefpresuenti-pi-actice 'itis 4nei:essajr'iffor the men who `tie the twineaboutthe x on- `a high platform, approiimately `12 feet high, some pulled by tractors and seine' by anirial's over rough ground.

A i further lpurpose is` to reduce "the handling of hop" twine sinceA Inylmaehinewill 'tie thewtwo of soaking the twine in Water as is tl'l"`prs"e`nt` practice.

The method used would also permit'the 'tieing ofthe knot heads ana/thriehgth-oflthe plunger.

My twiner is a simple 'devicej having'only`al i A plunger#hoek-earnedoaths-renderla nxibie man, am

myftwiner ties objects by modifyihgtheysize' plunger is passed through a casting which has passages for the plunger in the form of the desired knots. The plunger hook picks up the twine a predetermined distance from the end and is retracted through the passages, laying the twine therein in the desired knot forms. The twine is then released from the passages through lateral slots in the casting and allowed to fall about itself in the simple loop form and about a wire which has been passed through the casting to form a clove knot. The hook releases the twine by means of a shearing blade which is part of the hook itself. My machine thus measures the twine, cuts it in desired lengths, forms a loop in one end thereof, ties a double strand of twine about the wire, and completely releases the twine from the mechanism, leaving it hanging freely from the wire so it may be tied to the stakes. My machine is of the tractor or horse drawn type and receives power from the traction Yof its wheels to motivate the necessry parts, but

could be adapted to a power take off.

In the accompanying drawings which illustrate the embodiment of the invention:

Fig. 1 is a rear elevation of my complete machine;

Fig. 2 is a side elevation, taken from the right;

Fig. 3 is a plan view;

Fig. 4 is a diagrammatic plan view of the knot tying elements;

Fig. 5 is a diagrammatic rear view of the overhand knot tyer, with fragmentary cross sections showing the bearing surfaces of the passages and the neck in the passage which trips the plunger blade;

Fig. 6 is a cross section taken along the line 6-6 of Fig. 4 looking toward the left of that ligure;

Fig. '1 is a cross section taken along the same line of the same figure, looking toward the right;

Fig. 8 is a partial cross section taken along the line 8-8 of Fig. 5, looking upward;

Fig. 9 is a cross section taken along the same line of the same ligure looking down;

Fig. Vl0 is an enlarged detail view showing the guide pulley in elevation with a portion of the measuring drum from the rear thereof;

Fig. 11 is a development of the measuring drum;

Fig. 12 is a detail view drawn to a larger scale showing the clutch mechanism in elevation as seen from the rear of the machine;

Fig. 13 is a detail view drawn to an enlarged scale showing the twine severing mechanism in vertical cross section;

Fig. 14 is an elevational view of the twine severing mechanism as seen from the right of Fig. 13 drawn to a larger scale;

Fig. 15 is an enlarged side elevation showing the twine severing mechanism;

Fig. 16 is a top plan view of the twine severing mechanism;

Fig. 17 shows schematically the usual layout of a hop field.

Fig. 18 shows a clove hitch tied about a horizontal wire and secured by an overhand knot in the manner in which my machine will leave the twine attached to the wire.

Like reference characters indicate like parts throughout the several views.

As seen from Figures 1, 2 and 3, my twiner comprises a substantially rectangular base frame 20, carrying at its forward end hitching means 2l for attachment to a. tractor or the like, and mounted at its rear end on an axle 22, supported by wheels 23, at least 6 but less than '1 feet in circumference. As will be seen later this permits 8 knots to be tied in approximately 25 of the 28 feet between crosswires or plants and the knot tying apparatus to idle for about 3 feet near the crosswires. Horizontal side members 24 overlie each side of the base frame 2S, and are hinged to it at the rear so as to permit these side members, with the framework above them, to pivot about the rear of the machine in a vertical plane parallel to the direction in which the machine travels. An upright 25 is hinged to each side member 24 at its rear end so as to permit it to pivot about the side member in a vertical plane transverse to the direction of travel. Diagonal frame members 2S are attached to the iront ends of the side members and each is connected at its upper end to the upper end of the upright 25 on the same side of the machine through a horizontal frame member 21. These diagonals 26 are also hinged to the side members for transverse pivoting, so that each complete side frame may sway transversely and both sideV frames together may pivot about the rear of the machine in a vertical plane. The swaying motion is limited by stabilizing rods 28, one of which is pivoted to the base of each upright 25, and crosses diagonally to the upright rising from the opposite corner. Each of these uprights 25 carries a iiange 29 in which the diagonal stabilizing rod 28 is slidable, and the rod carries abutments 30 above and below the point at which it passes through the ange. Coil springs 3l encircle the rod between each abutment and the flange 29, thus normally retaining the uprights perpendicular to the ground but permitting a side sway under transverse pressure which is limited in degree by the location of the abutments.

A gear wheel 32 is mounted approximately midway of the axle 22, and meshes with a second gear wheel 33 slidably carried by a short axle 34 parallel to the rst named axle 22 and rotatably mounted on the base frame 20. The diameter of the second gear is approximately 4 times that of the first in order to decrease the rotational speed of the second axle to one-fourth that of the first. This second or short axle 34 carries near each end a bevel gear 35, which meshes with a second bevel gear 36 carried by a short vertical rod 31. These short vertical rods are rotatably mounted in the horizontal bar 38, carried by the base frame 2U as shown in Figure 1, and are connected through universal joints 39 fixed through sleeves 40 to longer vertical rods 4I, slidably mounted in these sleeves and held parallel to the side frames by upper and lower horizontal supports 42 and 43. Each of these longer vertical rods carries near its upper end a bevel gear 44 which meshes with a second bevel gear 45 of the same size mounted on the short horizontal shaft 46 which is supported from the side frame 25 by the horizontal members 41 best shown in Figure 2, and passes through the side frame to rotatably carry the measuring wheel 48. Each of the bevel gears 44 on the vertical rods 4I also meshes with a third bevel gear 49 approximately one-half of its size, carried on a short horizontal axle 55 parallel to and supported from the side frame. The axle 5l] extends forwardly from this third bevel gear 49 and terminates in a plain gear 5l which meshes with a second plain gear 52 approximately one-fourth its size mounted on a second short axle 53 parallel to 50, and also supported from the. side frame. axle. 53L

extends rearwardly from the gear wheel 52;-iand.

pin lever.

oscillations it will reciproeategafexiblemetallic.

plunger 88. (Figures .2. .'and. 5'),` whichv itjdrives, through` a. pin 6l (Fig. 1) y plunger and extendinggthrough;the.s1ot6,2 This plunger 58 is slidably. mounted within the housing 63 whichissupported onfthecross-arm 64 attached to the vuprigh-t25` andfbracedbythe diagonal 65. Reciprooationoftheplungerdrivcs` it throughcurved passages- (shownin 4-9 in the outer end of thevhousingepand down against the twines186carried` orrtlie,y measuring, drum 48. Taking the -lefjjl handv housingfroml the point of view of Fig.` 1 e supporting wire has been slipped dow-n through the slot 61 into channeled` the `.lzilunger enters the innermost, or clovehitch tying set;`of.p`asA sages at A of Figs( ifandf5,4 and "follows, the` arrowed line, leaving, this The plunger then enters1` thelloptying passages and emerges at C.."Thel`fp1 ty'ngv section fof the housing is traversedfby,faglarge central knot` outlet channel l(i9 the ,psitifon of which. is'shown in Figs. 4. 5, 8 and.` 9. the'lplung'er'is re.- traoted, the twine is 'drawn in throughC, and through the loop tyingchannelto VB. As soon as the 'plunger iswithdrawnfrom theselcha'nnels the twine will slipfoutthrough theslonts 10 intersecting the channelsAjsince.theseslots are wide enough to admitv the `t\'vine,fbut too narrow for the plunger.'` v n e I thusbe formed in4 the `knot"channel 69 f the loop tying portion of the IhousingA and 4drawn inward to B of Figs. 1l-and 5. Sincef'this knot is larger than the plunger, iti'w'illv notente'r the at lZ13-ibut will be diverted down thein'clinev `TI leaving the-housing clove hitch passage beginning at '12. (See Figs. V5arlt"6..) The twine trailing.

behind the overhandknot will clearrthrughthe slots 'i3 -and -14 eff-Figs; inland 5 .fwhich-lforma continuous opening with. 1 l.,I trminatinglasthe;`

bottom of 81.. Inclinew1l.`leads..from 'passage 'HA to the edge ofuthe blocklwhilelf61intersects.

only 61A. The plungercontinues, `leaving the.

clove hitch passage at AJ. dustbefore. itrreaches.

A there is a constrictionj, in.thepassagev which compresses the head of the ,plunger... This. head (best seen in Fig. .comprises` a;hook16 :and

pivoted blade. 11 normallymlosingthe open-side of the hook. The rear of rthebladeextends` away from the hook, and when theheadofthe plunger,

is compressed thisblade isforced inward towards the shank of the hook, thus.clitisingH the twine held therein, leavingit` freetq cling to thelight twine-supporting .wire `D (and pass out. through channels B8 and, 1|. Theplungeris ,thendriven'L back and the process rep,gated,y Itshould be notedthat the gearing,andlpitmanare. so arranged that the speed o the return :s oke of l the plunger into xthelho" 4s .`in g. isy great that of the forwardstrok H v time during which the twine' l iding "a wire as the` clove.- knot istied, '.'"'I'l`i e.`.t coiled in bOXeS` 'V W indicated at 18. Ther seatedin one.v end :,of.:

afterfthe hlightftwine,

et of passages atB.` R

6 for .each.measuring;wheel,\ and they areledup the frame members :26 through guides.A Mll.` to an. 8 channelled. pulley. wheel 19, over l this .pull`ey, and thence around each measuring drumAB'; in

, a clockwisedirection. reference being had.v to.v`

164 contactsbthe twine. Thel twine; then slides-v forces ,backs the.

along.A the exterior, ofrfthehook, pivoted blade 11 (wh-ich;V is rather bllmtf at'j its tip) and, ridesup `into the, curvepouthehook, thusxpermitting thefknife blade 11 tot fallback; in position, after .which the plungerfis with-Y drawn and ,the knots tied asoutlined above. A-s

will: be bestseenin Fig, 11, each oftheeight points `at which the` measuringwheel 48;.is cut away to accommodate rthe the center of its surface. and ridges thereon f are so ferent twine is picked up; points.

As each measuring wheel 48,-turns. the twine encounters the cutting assembly 88 best shown in Fig. 13. This lis a separate `part lined tothe` inner surface -ofythewheel At8.'V TheaplatetBBA. is fixed tothe :inner lsurfacepi themeasuring wheel and pivotally mounted lever. arm. projects radially inward and then `curves outwardly through a slot 8llin the plate and.thesu`rface of the wheel, terminating in a block 86,. with an inclined outer surfacev 81.. This block 86 carries'a blade 88 mounted on its inner edge Aoverhanging. and parallel` to the slot` 8.4, andcor. operates with a second blade 89 mounted on the plate 83A and projecting through theslot. The block 88 lies directly in the path o f the twine and when it is` raised by pivoting ofthe lever arm 85 the twine slides down the linclined suriface81 and slips underr the llllnormally retains the lever arm` in a radial position, and the block ilush againstfthe plate 83A. However, a stop extends outwardlyfrom However, thefgrooves arranged that aj udiff. at *each of the-eight the4 `side frame 21 and comprises arhorizontal axle 9| encircled by a freely rotatable sleeve 9;. When this sleeve encounters the pivoted lever arm, the block is forced upwarduntil the lever arm can pass over the stop. As the block is raised, the `twine passes'down the incline and into the slot formed bem/sentire lower edge of,

the block andfthe outer surface ofthe plate. The grooves in the wheel` are so arranged Ythat a different twine rests underthe plunger each one-eighth revolution, and since there is only one stop, `only the cutting mechanism holding away.- at :the center plunger 4head lies, along.`

block. A spring (and. the relative posities-S 0f the ruiters# -by the ovals in Fig. 11.A

Referring now -to the clutch mechanism, it will be observedfrom Figure 12, that stop 93 which is xed to the base frame 20, will trip the lever arm 94 which is pivotally mounted on a collar 95 i'ixed to the axle 34, once for each rotation of this axle, or once for each 8 reciprocations of the plunger. Tripping of this lever arm 94 will release the coil spring 96 which abuts on the fixed collar 95 at its outer end. This spring will then drive the slidable gear wheel 33 away from the xed collar and out of engagement with gear Wheel 32. No further knots will be tied until the lever 91 shownat the upper left of Figure 2, encounters one of the heavy crosswires above the hops. During the period immediately following the tying of the'8th knot, the plunger will remain idle within the housing 63, leaving the slot 61 free so that the light wire may be moved up and out of the slot by rods ||1 as the machine passes under the heavy cross wire, and then returned to it immediately thereafter. The lever 91 is pivotally mounted at the top of one of the uprights 25 and attached to the cable 98 which is quite flexible but does not stretch materially under' tension. When the lever 91 is pushed downward by the crosswire, a pull is exerted on the cable, thus tripping the catches 99 and |00, shown in Fig. l2. These catches are pivoted to a support on the base frame and normally hook over projections |02 and |03 rel spectively on lever arm |04 which is in turn pivotally mounted on sldable arm |05. The upper end of the lever arm |04 comprises a yoke |06 having slots |01 in each arm. These slots receive pins |08 projecting from the collar |09 which encircles the bushing ||0 on axle 34, and when the catches are in place this lever serves to retain the spring away from the gear wheel 33. When these catches are tripped, the spring I, which is stronger than spring 96, forces the gear wheel 33 back into engagement with gear 32, and catch 94 which has a beveled end, is

forced over theflange I8 on gear 33. The catch is held in position on the ange by compression spring ||9. A spring ||2 between the lower part of the lever varm |04 and the support |0| serves to pull this portion of the lever and the slidable arm on which it is pivoted back into position, and the lower catch |00 will then slip over the protuberance |03. The lever arm is then in a diagonal position and will shortly thereafter be engaged by the cam ||3 xed to the axle 22. This cam will force the lower end of the lever inward so that it will pivot about 95 thus forcing its upper end outward, and compressing the spring against abutment collar |20. When this motion has continued to the proper point, catch 99 will drop over protuberance |02, and the entire clutch engaging mechanism will again be locked until released by contact of the lever 91 with another crosswire.` Compression springs |11 and mounted between the support |0| and the cable ends of the catches to force them down into position over the protuberances |02 and |03. It will occasionally happen that the cam I3 will be in cocking'position at the very time the machine is passing under a crosswire, and tension is exerted on the cable. In this case the spring will be released regardless of the cam action, since the lower catch releases the support |05 on which the lever arm is pivoted. Since the cam will rotate completely 4 times during the time the gears should be in engagement, there will be no danger of the cooking action failing 8 to operate before an engaging action is next needed.

Immediately over the clove hitch section of the housing 63 are two arcuate rods ||6 which serve to lift the heavy crossvvires to clear the machine as these are encountered. A short distance in front of these rods is a hinged guide member ||1 which is so attached to the frame that upon encountering a heavy wire it will be forced downward but will be returned to a vertical position immediately after passage of the wire by a biasing spring. Either this guide member or the slot in the clove knetter will be in engagement with the light wire at all times, so there is no danger that the machine will lose the wire While passing through intersections. Y

Suitable manual controls may be connected to the guide member |1 and the clutch mechanism in order that these may be manually operated in case of emergencies. The uprights 25 and diagonals 26 may be telescopic so that the height of the machine can be adjusted. The clove knot tyer may be made in two hinged sections biased together with suitable springs in order to receive wires having a diameter too large to be accommodated by the channel.

It Will be appreciated that my device as described includes a number of mechanical features which are well known, and for which mechanical equivalents may be substituted without affecting the essential mode of operation of the machine. For instance, the passages in the housing 63 may be lined with various conventional materials designed to facilitate reciprocation of the plunger, or with bearings of various types. The housing may be made in several parts for ease of manufacture and these parts may be machined or cast by various processes. Other clutch mechanisms may be adopted and the gear ratios adjusted to different systems of proportioning the overhead wires to the number of hop plants between wires. The size of the measuring wheel may be adapted to the length of twine desired under any given circumstances.

While it is simple and quick to release the twine from the plunger by severing it. other releasing mechanisms may be provided for the plunger head. The plunger may be made of woven wire or any suitable material or combination of materials which meets the requirements of durability, flexibility, and relative incompressibility. Other methods of delivering the twine to the plunger head in measured lengths may be adopted, and the passages in the housing may be so formed as to tie other knots.`

What I claim is as follows:

l. A device for tying a knot in a cord comprlsing housing and passageways therein which follow the outline of the knot to be tied, a knot receiving cavity in said housing, slots having a diameter less than that of the passageways and connecting said passageways to said cavity, a exible plunger having a diameter` greater than that of said slots adapted to pass through said passageways, cord gripping means on one end of said plunger, and means for drawing said plunger through said channels.

2. A device as claimed in claim l in which said cavity is adapted to receive and travel along a wire and said passageways are so disposed that the cordA carrying plunger encircles the wire in the course of its travel.

3. A device as claimed in claim l in which said cord gripping means comprises a hook and cooperating pivoted blade adapted to out said cord when said blade is forced against said hook.

4. A device as claimed in claim 3 in which said passageway narrows near one end to force said blade against said hook.

5. A device as claimed in claim 1 in which said passageway has a narrowed portion and said cord gripping means is adapted to release said cord when it encounters said narrowed portion.

6. A device for aixing twines to overhead wires comprising a vehicle, a source of twine on said vehicle, a knot tying device mounted on said vehicle and adapted to travel along said wire and means for supplying twine from said source to said knot tyer.

7. A device as claimed in claim 6 in which said knot tyer includes a flexible plunger terminating in a cord pick up, said plunger being reciprocated in said knot tyer at a speed determined by the speed of the vehicle.

8. A device as claimed in claim 7 in which a plurality of twine lengths are passed over a rotating Wheel, and each twine length is presented in turn in a position to be picked up by said plunger.

9. A device as claimed in claim 8 in which said wheel carries a plurality of cord severing devices, one associated with each twine and adapted to sever that twine after it has been picked up by said plunger.

10. A device as claimed in claim 9 including a clutch adapted to disengage the driving means for said plunger after a predetermined number of knots have been tied.

11. A device as claimed in claim 10 including means for re-engaging said clutch when a wire is mounted running perpendicular to the wire about which the knots are tied.

12. A device as claimed in claim 1 in which the 10 passageway is in the shape of an overhand knot.

13. A device as claimed in claim 1 in which the passageway is in the shape of a clove hitch.

14. A device as claimed in claim 1 in which the passageway is in the form of an overhand knot and a clove hitch.

l5. A device as claimed in claim 14 in which said plunger picks up the cord at a point intermediate its ends, draws it rst through the overhand knot portion of the housing to form an overhand knot and then through the clove hitch portion to form a double clove hitch in the loop portion of the overhand knot.

16. A device as claimed in claim 6 .in which said knot tyer includes a flexible plunger terminating on a cord pick up, a plurality of cords are passed over a rotating measuring wheel, each cord is presented in turn as a position to be picked up by said cord pick-up on said plunger, and said plunger is reciprocated as many times during each turn of the measuring wheel as there are separate cords on the wheel.

HIRAM PRICE WILSON.

REFERENCES CITED The following references are of record in the ile of this patent:

UNITED STATES PATENTS Number Name Date 283,516 Root Aug. 21, 1883 306,691 Johnson Oct. 14, 1884 316,165 Mulligan Apr. 21, 1885 376,515 Corey Jan. 17, 1888 697,750 Pridmore Apr. 15. 1902 1,227,716 Wenzel May 29, 1917 1,424,458 Fleisher Aug. 1, 1922 1,534,441 Coveleskie Apr. 21, 1925 1,978,103 Croasdale, Jr., et al. Oct.. 23, 1934` 

